If you see a left arrow with a red circle and a line across it at an intersection, what should you do?

Seeing a left arrow enclosed in a red circle with a line through it signifies a prohibition against making a left turn at that intersection. This traffic control signal indicates that left turns are not allowed, meaning drivers must continue straight or make alternative maneuvers as permitted by other traffic signals or signage.

It is important to adhere to this instruction for safety, as making an illegal left turn could lead to accidents or disruptions in traffic flow. The presence of this symbol is unequivocal in communicating that yielding to oncoming traffic is irrelevant, as left turns are not permissible in this scenario. Therefore, the correct action is to proceed straight, disregarding the left turn entirely.